From: David Woodhouse <dwmw@amazon.co.uk>
Date: Fri, 7 Feb 2025 09:39:02 +0000 (+0100)
Subject: ptp: vmclock: Add .owner to vmclock_miscdev_fops
X-Git-Tag: v6.14-rc3~37^2~18^2~4
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=7b07b040257c1b658ef3eca86e4b6ae02d65069c;p=thirdparty%2Fkernel%2Flinux.git

ptp: vmclock: Add .owner to vmclock_miscdev_fops

Without the .owner field, the module can be unloaded while /dev/vmclock0
is open, leading to an oops.

Fixes: 205032724226 ("ptp: Add support for the AMZNC10C 'vmclock' device")
Cc: stable@vger.kernel.org
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
---

diff --git a/drivers/ptp/ptp_vmclock.c b/drivers/ptp/ptp_vmclock.c
index 0a2cfc8ad3c54..dbc73e5382935 100644
--- a/drivers/ptp/ptp_vmclock.c
+++ b/drivers/ptp/ptp_vmclock.c
@@ -414,6 +414,7 @@ static ssize_t vmclock_miscdev_read(struct file *fp, char __user *buf,
 }
 
 static const struct file_operations vmclock_miscdev_fops = {
+	.owner = THIS_MODULE,
 	.mmap = vmclock_miscdev_mmap,
 	.read = vmclock_miscdev_read,
 };